/*
 * This file contains code from "C++ Primer, Fifth Edition", by Stanley B.
 * Lippman, Josee Lajoie, and Barbara E. Moo, and is covered under the
 * copyright and warranty notices given in that book:
 * 
 * "Copyright (c) 2013 by Objectwrite, Inc., Josee Lajoie, and Barbara E. Moo."
 * 
 * 
 * "The authors and publisher have taken care in the preparation of this book,
 * but make no expressed or implied warranty of any kind and assume no
 * responsibility for errors or omissions. No liability is assumed for
 * incidental or consequential damages in connection with or arising out of the
 * use of the information or programs contained herein."
 * 
 * Permission is granted for this code to be used for educational purposes in
 * association with the book, given proper citation if and when posted or
 * reproduced.Any commercial use of this code requires the explicit written
 * permission of the publisher, Addison-Wesley Professional, a division of
 * Pearson Education, Inc. Send your request for permission, stating clearly
 * what code you would like to use, and in what specific way, to the following
 * address: 
 * 
 * 	Pearson Education, Inc.
 * 	Rights and Permissions Department
 * 	One Lake Street
 * 	Upper Saddle River, NJ  07458
 * 	Fax: (201) 236-3290
*/ 

#include <iostream>
using std::cin; using std::cout; using std::endl;

#include <sstream>
using std::istringstream; 

#include <string>
using std::string;

void read()
{
	// turns on both fail and bad bits
	cin.setstate(cin.badbit | cin.eofbit | cin.failbit);
}

void off()
{
	// turns off failbit and badbit but all other bits unchanged
	cin.clear(cin.rdstate() & ~cin.failbit & ~cin.badbit);
} 


int main()
{
	cout << "before read" << endl;
	if (cin.good()) cout << "cin's good" << endl;
	if (cin.bad()) cout << "cin's bad" << endl;
	if (cin.fail()) cout << "cin's fail" << endl;
	if (cin.eof()) cout << "cin's eof" << endl;
	
	read();
	cout << "after read" << endl;
	if (cin.good()) cout << "cin's good" << endl;
	if (cin.bad()) cout << "cin's bad" << endl;
	if (cin.fail()) cout << "cin's fail" << endl;
	if (cin.eof()) cout << "cin's eof" << endl;
	
	off();
	cout << "after off" << endl;
	if (cin.good()) cout << "cin's good" << endl;
	if (cin.bad()) cout << "cin's bad" << endl;
	if (cin.fail()) cout << "cin's fail" << endl;
	if (cin.eof()) cout << "cin's eof" << endl;
	return 0;
}
